1919] Chalcid-fly Parasitic on Ant 17 



Pupa. (Plate II, Figs 1, 2, 3). Length 15 mm. Elongate 

 and slender, with the abdomen not noticeably swollen and not 

 curved downward, the whole body with vesicular swellings. 

 The head is bent under the thorax so as to be scarcely visible 

 from above, but its projections extend forward as a central 

 bifurcate, transversely wrinkled papilla artd another one at each 

 side projecting forward and outward. The mesonotum bears 

 a small rounded tubercle at each side of the anterior edge, 

 an acute one near each tegula and a widely separated pair of 

 sub-acute ones on the disc before the scutellum; otherwise the 

 integument is simple except for a raised, longitudinally wrinkled 

 area between the anterior pair of tubercles. There are no tuber- 

 cles above the propodeum and petiole like those figured by 

 Reichensperger {loc. cit.) for P. fraudulentus. 



Abdomen narrowly oval, broadest near the anterior end, 

 composed of five apparent large segments and a short apical 

 one, followed by a portion which appears to be retractile and 

 composed of several fleshy segments, terminated by a polliciform 

 projection. Dorsally the five large segments are separated 

 by sharply elevated transverse ridges, each interrupted narrowly 

 along the median line. At the median end each is elevated as a 

 tooth, again as a more conspicuous and longer tooth at the 

 lateral end, which is well down on the side of the body; midway 

 between there is another tooth. Between the large teeth, 

 especially near the dorsal line, there are more or less distinct 

 minute denticulations. The ridges between all segments are 

 very nearly of the same size, except that the lateral tooth-like 

 projections of the first are much larger. The ventral surface 

 is clearly separated by a slight ridge and groove just inside the 

 intersegmental teeth and is less convex than the dorsal surface ; 

 only the second to fifth transverse ridges are clearly indicated; 

 they are continuous and much less conspicuous than the dorsal 

 ones; the first is faintly visible and bears an anteriorly directed 

 tooth at its middle. Seen from below, the dorsal surface of 

 the short sixth segment extends further down than the others, 

 leaving only a narrow ventral part which is conically elevated; 

 in addition the apex of the fifth ventral segment bears a pair 

 of closely approximated tubercles at apex; following retractile 

 segments without distinctly separated dorsal and ventral 

 surfaces. 



Described from one perfect and several damaged specimens.. 



